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12088445 = 517142217
BaseRepresentation
bin101110000111…
…010001111101
3211202011020012
4232013101331
511043312240
61111033005
7204515165
oct56072175
924664205
1012088445
116907256
12406b765
132673335
1418695a5
1510dbb65
hexb8747d

12088445 has 8 divisors (see below), whose sum is σ = 15359544. Its totient is φ = 9101824.

The previous prime is 12088441. The next prime is 12088463. The reversal of 12088445 is 54488021.

12088445 = 24582 + 24592.

It is a happy number.

12088445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6041764 + 6046681 = 2458^2 + 2459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12088445 - 22 = 12088441 is a prime.

It is a super-2 number, since 2×120884452 = 292261005036050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12088441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71024 + ... + 71193.

It is an arithmetic number, because the mean of its divisors is an integer number (1919943).

Almost surely, 212088445 is an apocalyptic number.

12088445 is the 2459-th centered square number.

It is an amenable number.

12088445 is a deficient number, since it is larger than the sum of its proper divisors (3271099).

12088445 is a wasteful number, since it uses less digits than its factorization.

12088445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142239.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 12088445 is about 3476.8441149985. The cubic root of 12088445 is about 229.5039403288.

The spelling of 12088445 in words is "twelve million, eighty-eight thousand, four hundred forty-five".

Divisors: 1 5 17 85 142217 711085 2417689 12088445